Add Bob's path library to pub.

utils/tests/pub/path/path_test.dart

+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library all_test;
+
+import 'dart:io' as io;
+
+import '../../../../pkg/unittest/lib/unittest.dart';
+import '../../../pub/path.dart' as path;
+
+main() {
+  group('path.Style', () {
+    test('name', () {
+      expect(path.Style.posix.name, 'posix');
+      expect(path.Style.windows.name, 'windows');
+    });
+
+    test('separator', () {
+      expect(path.Style.posix.separator, '/');
+      expect(path.Style.windows.separator, '\\');
+    });
+
+    test('toString()', () {
+      expect(path.Style.posix.toString(), 'posix');
+      expect(path.Style.windows.toString(), 'windows');
+    });
+  });
+
+  group('new Builder()', () {
+    test('uses the given root directory', () {
+      var builder = new path.Builder(root: '/a/b/c');
+      expect(builder.root, '/a/b/c');
+    });
+
+    test('uses the given style', () {
+      var builder = new path.Builder(style: path.Style.windows);
+      expect(builder.style, path.Style.windows);
+    });
+
+    test('uses the current working directory if root is omitted', () {
+      var builder = new path.Builder();
+      expect(builder.root, new io.Directory.current().path);
+    });
+
+    test('uses the host OS if style is omitted', () {
+      var builder = new path.Builder();
+      if (io.Platform.operatingSystem == 'windows') {
+        expect(builder.style, path.Style.windows);
+      } else {
+        expect(builder.style, path.Style.posix);
+      }
+    });
+  });
+
+  test('current', () {
+    expect(path.current, new io.Directory.current().path);
+  });
+}